Microcellular extrusion of PLA utilizing solid-state nucleation in the gas-saturated pellet extrusion process

2012 ◽  
Vol 127 (3) ◽  
pp. 1967-1973 ◽  
Author(s):  
Dustin Miller ◽  
Vipin Kumar
Keyword(s):  
Solid State ◽  
Extrusion Process ◽  
Pellet Extrusion

Solid-state welding and microstructural features of an aluminium alloy subjected to a novel two-billet differential velocity sideways extrusion process

2021 ◽  
Vol 296 ◽  
pp. 117189
Author(s):  
Xiaochen Lu ◽  
Junquan Yu ◽  
Victoria A. Yardley ◽  
Hui Liu ◽  
Zhusheng Shi ◽  
...  
Keyword(s):  
Solid State ◽  
Aluminium Alloy ◽  
Extrusion Process

scholarly journals Properties of „In Situ” 7475 Alloy Matrix Composites Reinforced Al3Ti Intermetalic Compound Extruded in Semi-Solid State

2016 ◽  
Vol 61 (1) ◽  
pp. 433-438 ◽  
Author(s):  
W. Szymański
Keyword(s):  
Heat Treatment ◽  
Solid State ◽  
Aluminium Alloy ◽  
Extrusion Process ◽  
Liquid Aluminium ◽  
Alloy Matrix ◽  
Electron Microscopies ◽  
Semi Solid ◽  
Composite Hardness

Studies were conducted to improve the mechanical properties of composites based on 7475 aluminium alloy reinforced with Al3Ti particles fabricated by the “in situ” process. The first step involved “dissolving” of titanium in the liquid aluminium alloy and fabricating in this way composite materials with different content of the reinforcing phase (15-45wt%). A relationship between the composite hardness and content of the reinforcing phase was confirmed. The second step involved the improvement of cohesion between the reinforcing particles and composite matrix. By extrusion of samples in semi-solid state, an average increase in hardness by 15-20% relative to the unextruded composite was obtained. In the third step, the fabricated composite was subjected to a heat treatment corresponding to the state T6 in 7475 alloy, which raised the hardness by about 30%. Structure examinations carried out by means of optical microscopy and scanning electron microscopies as well as the results of hardness measurements were described. They enabled estimating the effect of the content of produced Al3Ti particles, and of the extrusion process in semi-solid state and heat treatment parameters on the composite properties. In compression test, the yield strength and compressive strength of the heat-treated composites were determined.

Elucidation and visualization of solid-state transformation and mixing in a pharmaceutical mini hot melt extrusion process using in-line Raman spectroscopy

2017 ◽  
Vol 517 (1-2) ◽  
pp. 119-127 ◽  
Author(s):  
Jeroen Van Renterghem ◽  
Ashish Kumar ◽  
Chris Vervaet ◽  
Jean Paul Remon ◽  
Ingmar Nopens ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Solid State ◽  
Hot Melt Extrusion ◽  
Extrusion Process ◽  
Melt Extrusion ◽  
State Transformation ◽  
Solid State Transformation ◽  
Hot Melt

Analyses of Solid State Extrusion Process of Polymeric Materials by Pressure Dependent Yield Criteria

1974 ◽  
Vol 3 (1) ◽  
pp. 23-28 ◽  
Author(s):  
K. Nakamura ◽  
K. Imada ◽  
M. Takayanagi
Keyword(s):  
Solid State ◽  
Polymeric Materials ◽  
Extrusion Process ◽  
Yield Criteria

Solid state recycling of aluminium alloys via a porthole die hot extrusion process: Scaling up to production

2017 ◽  
Author(s):  
Dimos Paraskevas ◽  
Karel Kellens ◽  
Yelin Deng ◽  
Wim Dewulf ◽  
Carlos Kampen ◽  
...  
Keyword(s):  
Solid State ◽  
Aluminium Alloys ◽  
Hot Extrusion ◽  
Scaling Up ◽  
Extrusion Process ◽  
Porthole Die ◽  
Process Scaling

Magnesium pellet extrusion process

1957 ◽  
Vol 263 (4) ◽  
pp. 371-372
Keyword(s):  
Extrusion Process ◽  
Pellet Extrusion

In-Situ Solid-State Synthesis of Mg Composite with Mg2Si Dispersoids

2005 ◽  
Vol 475-479 ◽  
pp. 497-500
Author(s):  
Ritsuko Tsuzuki ◽  
Katsuyoshi Kondoh
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
High Performance ◽  
Extrusion Direction ◽  
Hot Extrusion ◽  
Extrusion Process ◽  
Synthesis Temperature ◽  
Solid State Synthesis ◽  
Casting Alloys

Super light and high performance Mg2Si/Mg composites, which had excellent mechanical properties, were developed via the combination of solid-state synthesis and hot extrusion process. In this study, cold compacting (CP) and repeated plastic working (RPW) were firstly carried out for the mixture of Mg-Si powders, and the refinement of both Mg grains and dispersoids. Each specimen was evaluated by observation of microstructure and tensile test. As a result, it was understood that Mg2Si dispersoids were refined and dispersed into Mg matrix, and were flowed along extrusion direction. And their mechanical properties were higher than the conventional die casting alloys. Also the effect of RPW as the improvement of properties and the decrease of synthesis temperature were confirmed.

scholarly journals Raman spectroscopy for the in-line polymer–drug quantification and solid state characterization during a pharmaceutical hot-melt extrusion process

2011 ◽  
Vol 77 (1) ◽  
pp. 158-163 ◽  
Author(s):  
L. Saerens ◽  
L. Dierickx ◽  
B. Lenain ◽  
C. Vervaet ◽  
J.P. Remon ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Solid State ◽  
Hot Melt Extrusion ◽  
Extrusion Process ◽  
Melt Extrusion ◽  
Hot Melt ◽  
Solid State Characterization

Pulverization of rubber granulates using the solid state shear extrusion process

2001 ◽  
Vol 115 (3) ◽  
pp. 277-289 ◽  
Author(s):  
E Bilgili ◽  
H Arastoopour ◽  
B Bernstein
Keyword(s):  
Solid State ◽  
Extrusion Process
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